errera



A. ERRERA' Sept. 15, 1931.

COMPUTING MACHINE'V Filed Aug. 9, 19%, 34 4 Sheets-Sheet l jnvenfor:

Erre ra flJ/lmqmzc.

Attorney Sept. 15, 1931. A. ERRERA COMPUTING MACHINE Filed Aug. 1927 4Sheets-Sheet 2 frr-era AZZo/"ney Sept. 15, 1931. A. ERRERA 1,823,252

COMPUTING MACHINE Filed Aug. 9, 1927 4 Sheets-Shem. 3

Sept. 15, 1931. A. ERRERA 1,323,252

' COMPUTING MACHINE File d Aug. 9. 1927 4 SheetsSheet 4 Patented Sept. 15 1 93 PATENT OFFH'IE ATTILIO ERRERA, F TURIN, ITALY, ASSIGNOR TOSOCIETA ITALIANA REGISTRATORI SIR, OF TURIN, ITALY, A COMPANY OF ITALYCOMPUTING MACHINE Application filed. August 9, 1927, Serial No. 211,780,and in Italy August 20, 1926.

The present invention has for its object a printing apparatus'forattachment to cash registers, computing machines and the like, whichprovides for printing on a recording strip or tape the operationseifected in the machine as well as for printing and delivering ticketsand stamping documents, as bills or the like, which may be insertedtemporarily in the machine.

The apparatus according to this invention may be removed bodily from themachine in which it is arranged, and the device for printing therecording strip or tape is in turn removable from the apparatus, themeans for the actuation of said device being further able to take updifierent positions depending on the required conditions of operation.

The ticket printing device may be put in operation at will, either tooperate forgiven operations of the machine or to print a single ticket,or forticket printing and delivery at each operation, and finally it maybe used for stamping documents inserted in the machine. 7

In the accompanying drawings there is illustrated by way of example anembodiment of this invention and: I

Figure 1 is a side view of the whole of the apparatus Figure 2 is asection on line 22 of Figure 3;

Figure 3 is a fragmentary plan view of Figures 1 and 2;

Figure 4 is an elevation to enlarged scale of a detail of Figures 2 and3, some parts being omitted or broken to make clear the illustration 3Figure 5 is a fragmentary plan View of Figure 4;

Figure 6 is a fragmentary enlarged front View of a further detail;

Figure 7 is a fragmentary plan view of Figure 6;

Figure 8 is a fragmentary diagrammatic view showing a portion of themechanism and Figure 9 is a fragmentary view similar to F igure 4 withthe parts in a different operative position.

The present invention may be used in connection with cash registers andcomputing machines and it is hereinafter described in connection with acash register of well known and conventional type, including printingtype means carried in position by the setting-up or indexing operationof the machine and a main driving shaft which is rotated after thesetting-up operation to produce the operation of the machine.

As shown in Figures 13 the whole device for printing on a recordingstrip or tape and for ticket printing and delivery is carried by asupport provided by two side plates 1, 1 and is fastened by means ofbolts 2 on the frame of a cash register, the outline of which is shownin Figure 1, said support being thus able to be removed bodily from saidcash register by unscrewing nuts 300 from said bolts and withdrawing thesaid support.

.The side plates 1-1 have an opening 301 beyond which extends a set ofconcentric printing type discs or wheels 8 when said support is attachedin position on the machine; said type wheels are driven as usual byconcentric shafts 3 of the registering mechanism and their rims areprovided with projecting types intended to print numerals carried intoprinting position by the operation of the cash register, as hereinafterdescribed; each of said wheels 3 is provided with a double series offigures from O to 9, which series alternate with each other and arespaced from each other through a given angle to provide for printing thesame numeral on two spaced platens as hereinafter described.

The device for printing on a recording strip or tape comprises a plate 4(Figure 1) which is pivoted, by means of asleeve 5, on a pivot stud 6fastened on side plate 1; on said movable plate 4 are mounted to rotateon respective spindles abobbin 7 from which a paper tape r shown by adotted line is unwound, a winding-up bobbin 8 and a platen roller 9. Akey 304; rigidly connected to bobbin 8 enables the operator to wind upthe paper tape thereon when required. Said platen roller 9 has securedto it a ratchet wheel actuated by a locking pawl lland a driving ing it,on the platen roller 9 to ensure pawl 13, the latter pivoted on an armwhich rocks on an axis concentric with roller 9 and has a back pin 141engaged in a coopcrating hole of side plate 1; at each oscillation ofplate 4 with respect to side plate 1 said arm 140 and pawl 13 move withrespect to ratchet wheel 10 and the cooperation of said ratchet wheel 10and pa-wls 11 and 13 causes the ratchet wheel 10 and roller 9 to feedingand platen roller 9.

The oscillationof plate 4 around pivot stud 6 is caused by the hammer 14of a lever 24 located behind plate 1 (Fig. 2) and fulcrumed at 282 andhaving a roller 24 actuated by a cam 144 fixed to the main shaft 110 ofthe cash register or machine, said hammer 14 striking on a cross bar 16adjustably carried by plate 4, and located behind the same. Said crossbar 16 is controlled by a knob 15 whose spindle extends through plate 4and carries cross bar 16, to take up two differentpositlons in one ofwhich (represented 1n 7 full lines in Fig. 2) the end of said cross bar16 is near hammer 14 which strikes it immediately the lever 24 isoscillated, while in its alternative position (dotted line, Fig. 2)which is perpendicular to the first one, it is spaced from hammer 14 andenables the lever 24 to efiiect its entire oscillation without itshammer 14 actingon. cross bar 16. Knob 15 actuatesalso a crank arm 18fulcrumed at 302 on plate 4 and engaging by its hook 19,

against the action of a return spring not shown, a groove 20 in pivotstud 6, to hold plate 4 rotatably engaged on the side plate 1. Byturning knob 15 to a position in which its recess 17 is in front of astud 21 on crank arm 18, hook 19 is removed from the groove of stud 6under action of its return spring, and then plate 4 with cooperatingparts may be released from pivot stud 6 and removed from side plate 1.

By-turning knob 15 into positions marked respectively 1', 2 and '3, anyof the three fol lowing operative conditions may be secured: (1) plate 4and record tape printing device in operative condition (hook 19 engagedin groove-2O and cross bar 16 adjacent to hammer 14) (2) tape printingdevice in inoperative condition (hook 19 engaged in groove 20 and crossbar 16 spaced apart from hammer 14) and (3) plate 4 released and able tobe removed by itself from side plate 1 and the machine, and printingdevice inoperative in order, say, to renew the recording tape or forother purposes (hook 19 released from groove. 20 and cross bar 16 spacedfrom hook 14).

The type inking ribbon consists of an endless band c' which follows apath shown by a dotted line in Figure 1 and embraces the set of typewheels or disks 3 and a feeding roller 29 the feed is caused by aratchet wheel 22 secured to said roller 29 and actuated by a drivingpawl 23 and a locking pawl 25 at each oscillation of arms 280281 ashereinafter described. Rollers 26 and 27 are forced against'he ribbon c'by spring actuated arms 305306 carrying them, to. supply said ribbonwith ink and to force it in contact with its feeding roller 29. A nosearm 28 carrying atone end the pawl 23 is intended to aline and justifytype wheels 3 immediately before the printing operation.

Said nose 28 is actuated by an arm 280 rigidly connected therewith andby a further arm 2 1 rigid with a shaft 282, both arms being mentionedabove; and said shaft 282 in turn is rigid with an arm 281 having aroller 283 actuated by a cam 284 on shaft 110 (Fig. 2).

The above cescribed actuating members ing rollers for the inking. ribbonare "a ged in a removable casing which also provided with a printingplate 181 intended to print pictures, indicia, or the like on tickets,and with a of type rollers 182 intended to print dates and otherindicia, as well as with actuating means for the last named type disks182, these means not being illustrated. I.

As above described. the ticket printing and delive ing device may be setfor difi erent operative conditions, that is, it may be made entirelyinoperative, or it may be made operative for the delivery of a singleticket and thereafter a i n inoperative the further operation of thecomputing of the ma chine, or it may be made permanently op- In both thelast named operative r ons the printing and delivery of set ticket maybe replaced by a printing operarender the ticket delivering meansinopera tive while permitting the operation of the printing device.

The ticket strip or tape 7fintended to form the tickets is carried by adrum 30 ire 1) loosely pivoted on. side plate 1, and the tape t passesalong guides 31. d 32 to a feeding roller 33 and then through a guide 34which leads it over platen 35 and under disks or wheels 3 r, a roller 36then ejects the printed ticket which passes to the deliverv plate 37. iI

A roller 285 serves for inking roller which is provided with type intend?(l to be reproduced on the lower face of the ticket; said roller 285 iscarried by a crank arm 307 fulcrumed at 308 and actuated by a spring309.

The rollers 33 and 36 are actuated by the .main shaft 110 of the machineby means of gear wheels as hereinafter described; as is well known, theoperation of machines of the kind to which this invention refers isproduced by a revolution of a main shaft after amounts have been set upor indexed by the manipulation of keys, and during said revolution ofthe said main shaft the several registers and totalizers are driven, theprinting device and the ticket delivery device are operated and finallythe keys are released, the 5 several parts of the machine then beingbrought again into inoperative position for subsequent operation.

In the first portion of the revolution of the main shaft 110, roller 33operates to feed the ticket strip 2f until it is within reach of roller36 (it being assumed that the ticket delivery mechanism has been broughtinto operative condition) an-din the subse quent' operation a knife 313is raised to cut a ticket from the strip and the platen is actuated toforce said ticket against inking ribbon -/i and printing parts3-181-182; finally in the last portion of the revolution of the mainshaft the roller 36 is made operative, it delivering a printed and cutoff ticket on the plate 3 To obtain the operation briefly stated above,the platen 35 is carried by a slide 38 mounted to reciprocate verticallyin guides 39 fastened on side plate 1, said slide abutting at the loWerend of its stroke on a bottom stop 145 and carrying a front projection40 to effectthe platen lifting operation as hereinafter described.

40 This operation is produced by a bell crank 41 subjected to the actionof a return spring 286 and fulcrumed at 42, one arm having a roller 43which is driven by a cam 44 fast on the main shaft 110 of the machine.On the end of the other arm of bell crank 41 is pivoted at 45 a crank 46whose stud 47 is designed to engage said projection 40 when the platenis to be operated and the bell crank 41 is oscillated by cam 44. Tocontrol crank 46 a second crank 48 is fulcrumed at 49 on bell crank 41and it has one end coupled at 50 with crank 46; the other end of saidcrank 48 is subjected to the action of a spring 51 fastened to bellcrank 41 and it has a head 310 actuated by a projection 52 on an arm 53loose on pivot 42 and connected at 54 withan arm 55 fixed to, a shaft111; an arm 83 (Fig. 2) fixed to shaft 111 is actuated by asector-shaped .rocker 56 fulcrumed at 30 57 and controlled by keys6162112113 .114 which are adapted to putthe ticket printing device intooperation in the here'- inafter described manner. 1

A spring 58 acting on an arm 311 connected 5 to rocker 56 moves thelatter 56 back to its position in which parts 83111--555453 5248 keepcrank 46 with its stud, 47 spaced from projection 40 (Fig. 1); then theoperation of the computing machine and the revolution of cam 44 as wellas the consequent oscillation of arm 41 leave the platen 35 inoperative.

When any of the keys intended to put the printing device into operativecondition is actuated, arm 53 is oscillated by the above described parts568311155, and its projection 52 engages head 310 and rocks cranks 48and 46 to carry stud 47 into position to cooperate with parts 40-38, sothat the oscillation of bell crank 41 produced by cam 44 thus lifts theplaten 35 to force the portion of strip above it against the inkingribbon and printing parts.

As shown in Figures 6 and 7, in said platen 35 is mounted a loose shaft59 having excentric pivots 59 and engaged with a C-shaped piece 314which is located on the extension of platen 35 and is rigidly connectedwith blade 313 which cooperates with a stationary blade 60 having a slotthrough which passes the ticket strip t, to cut a ticket from the saidstrip at the beginning of the upward stroke of the platen. The shaft 59may be adjusted from outside by means of a manipulating knob 159 and itmay be locked in any selected position by means of a nut 259 screwed onone of said parts 59 which clamps a conical split sleeve 359 loose onsaid pivot 59 in a conical seat in said platen; by adjusting the angularposition of shaft 59 it is thus possible to adjust the position of theblade 313 with respect to the platen and to the stationary blade 60while blade 313 is caused to reciprocate in guides 312 to follow saidplaten in its reciprocation.

The sector 56 is actuated by keys 61 and 62, the first one of which isintended to be released from its operated position by the operation ofthe setting up or indexing keys of the machine in the manner usual incomputing machines and cash registers, while the second one is providedwith a stop 63 which holds it in operated position until it is removedtherefrom by the operator, the provision of such a stop as 63 being alsowell known in machines of the above stated kind.

hen the key 61 is manipulated, the printing device operates only inrespect of any operation or manipulation at the beginning of which theoperator has actuated key 61, while when key 62 has been depressed, saidprinting device operates in a permanent manner until key 62 is releasedby the operator. The keys 112, 113, 114 correspond with particularoperations effected in the computing machine and they actuate an arm 115fulcrum-ed at 315 which acts on a stud 116 carried by sector 56 and putsthe printing device in operative conditions as above described.

diary of pinions 316-287-288-289-290- 291 (Fig. 3) but the strip and theticket severed therefrom are under the grasp and action of said rollersonly when they are pressed thereon and thus the feed of the strip may bemade inoperative at will.

F or this purpose (Figures 4 and 8) on side plate 1 are pivoted at 64and 65 crank arms 66-66 and 67-67 carrying rollers 68 and 69 paralleland adjacent to rollers 33- 36 and'intended to press the strip andticket on said feeding rollers 33-36. The said arms 67 and 66 arecoupled by links 70-71 with levers 72-73, both fulcrumed at 74 and eachunder the action of a separate spring an 7 5-75 (Figures 2348), saidlevers being provided with rollers 76-77 intended to be engaged by cams78-117 fast on the main shaft 110: of the machine.

Levers .7 2-73 are/engaged at their ends by a locking. pawl 79 which isfast on a rocking shaft 97 and is held by the intermediary of a returnspring 99 in a position in which it leaves levers 72-73free, Said spring99, shown inFigure 4, is attached to a bell crank 100 fast on shaft 97and to a second bell crank 98whose purpose is hereinafter described andwhich issubstantially stationary at the time said return spring mustoperate. Said pawl 79 is actuated in turn by means of a pin 79 carriedthereby, by the edge of a lever 82' pivoted at 65 and actuated by arm 81fast on shaft 111; as'above described, said shaft 111 is intended tocontrol the operation of the platen and it is in turn actuated by arm83, sector 56 and the several control keys. Lever 82 has a nose 84(Figures 2 and 8) intended to be engagedby a tooth 85 on a rocker arm 86pivoted at 87 and actuated on one side by spring 88 and on the otherside, through a pin andslet'connection 89-90, by a link 91 jconnectedwith a lever 92 fulcrumed' at 97 and under the action of aspring 93, as well assubjoct to actuation by an abrupt cam 95 rigidlyconnected with cams 78 and 117,

T through the intermediary of roller 94 pivoted on the end of lever 92.On sector e6 being acted on to put the ticket printing device inoperative condition, lever 82 is oscillated and" leaves pin 79 free tomove forward, the pawl 7 79 being then removed by action of its spring99, and then springs -75- cause levers 72 and 73 to oscillate aroundtheir fulcra 74' and to carry their rollers 767 7 into contact withearns 78 and'117. At the beginning of 5 the rotation of the main shaft110 (which 78 and permits lever 72 to rise; link 70 is thuscaused torock arms 66-66 and to carry roller 68 against thecooperating'feedingroller 33, thus producing the engagement of theticket strip by roller 33' and the feed of said strip, to carry afreshportion thereof above platen 35 until its end is over roller 36 readyfor engagement thereby. V

After a ticket has been printed and cut off by the described operationof the platen and blades, an operation'similar to the above describedone is repeated in respect of cam 117, roller 77 lever 73, link 71, arms67-67 and roller 69 which presses the ticket on the roller 36 which isdriven by the main shaft of the machine and causes it to be expelledfrom the machine. 7

At the beginning of operation of cams 78 and 117 the abrupt cam 95releases roller 94,

d lever 92 is thus free to move upward under the actuation of its spring93; link 91 is thereby raised and spring 88 is enabled to shifts-rm 86and tocarry its tooth 85 into engagement with tooth 84 of lever 82 tohold said lever stationary and pawl 79 in released position with respectto levers 7 2-73 through the entire revolution of cams 7 8 and 117.

On the contrary when the main shaft 110 of the machine is actuatedwithout any of the control keys 61-62-112-113-114 having first beenmanipulated, and the printing device is in inoperative condition, lever82 keeps pawl 7 9 in position to engage levers 7 2 and 73 which are thusprevented from rising when the depressions of cams 78 and 117 pass overthe: rollers 76-77 on said levers, while the slot 90provides for thefree oscillation of lever 92 in spite of the fact that rocker 86 isprevented from making its complete stroke because of the abutment of itstooth 85 against the nose or tooth 84 of lever 82; at the end of therevolution of the shaft 110 the slope of cam'95 again moves roller 94and lever 92 into their position shown in Figure 2.

To provide for printing from the types carried by disks 3 and the otherprintingparts 181-182 into printing position, on a sheet introduced fromoutside into the guide 34, as a bill or the like, (it being necessaryfor this purpose to make the ticket strip feeding means inoperativewhile. allowing the platen operation), the mechanism hereinafterdescribed in' connection with Figures 4, 5 and 9 is used. The pawl 79 isrigidly connected through the intermediary of shaft 97, with pin 103 oflever 102 to move plunger 104 into guide 34. Such a motion of plunger104 is usually unrestricted when a ticket is printed because the leadingedge of said ticket is above roller 36 and the guide 34 is free, butwhen a sheet of paper or the like is inserted in guide 34 from outside.to produce a print thereon, pawl 7 9 is held in engaged position becausethe point of interconnection 816 of lever 102 with plunger 104 is leftstationary owing to the rise of plunger 104 being prevented, andtherefore in view of the displacementof pivot pin 103 produced in the described manner by the oscillation of arms 92 and 98, said lever 102rotates with respect to pivot 103 and arms 98-92 and produces anoscillation of crank 100 and pawl 79 to restore said pawl 79 inengagement with levers 72 and 73 before their rollers 7 6 and 77 haveentered the depressions of their respective cams 78-117.

The operation and use of the described devices are made clear by theabove descrip ion.

The record tape or strip printing device is put in operation at eachmanipulation of the indexing keys of the machine, unless the device isintentionally made inoperative by the manipulation of knob 15.

The ticket printing device is usually inoperative but on one of thecontrol keys 61,-112113114 being manipulated when the desired amount isset up or indexed in the machine, said. device is put in operation bythe subsequent operation of the machine;

thereafter the control key is released in the usual manner as aconsequence of the opera- .tion of the machine and the ticket printingdevice is again rendered inoperative after 1 each operation.

a Qn thecontrary when key 62 is depressed, wlnch'key is held inoperativeposition by i stop 63, the ticket printing device is put permanently inoperative conditions and a ticket is printed and delivered at eachoperation of the machine until stop 63 and key 62 are released bytheoperator.

In both cases above described, when a sheet is inserted from outside.into the guide 34, a

- recordis printed on said sheet and the delivery of a ticket isprevented.

Of course the features of the present inventi'on may be embodied inmachines in which the setting up or indexing operations are made bymeans of levers instead of keys.

The described apparatus has the advantage that the recording tapeprinting device maybe removed separately from it when required, whilethewhole apparatus may be detached from the computing machine to whichit has been applied, and a single set of printing and inking means isused in respect of all printing points.

Of course the present invention is not restricted to the constructiondescribed and illustrated'and it may be embodied in a number ofdifferent constructions lying within the spirit of the appended claims.

What I claim as my invention and desire to secure by United StatesLetters Patent is:

1. A ticket printing and delivering attachment for computing machines,comprising means for supporting a ticket strip, a roller for feedingsaid strip, means for severing a ticket from the strip, a platen, aroller for ejecting said ticket, said rollers being driven by a shaft ofthe computing machine, pressure rollers for respective cooperation withsaid feeding and ejecting rollers, members carrying said pressurerollers, a leading cam on said shaft controlling one ofsaid carryingmembers, a trailing cam on said shaft controlling the other carryingmember, spring means acting on said members to carry them and theirpressure rollers into cooperation with their respective feedin andejecting rollers and cams, means for shifting said platen, a cam onsaidshaft intermediate said leading and trailing cams and operating saidplaten shifting means, controlling means for putting said platenshifting means into operative and inoperative condition, meansrestraining said spring actuated members against motion towards theirrespective cams, means for putting said restraining means in releasedand engaged positions.

2. A ticket printing and delivering attachment for computing machines,comprising means for supporting a ticket strip, a roller for feedingsaid strip, means for severing a ticket from the strip, a platen, aroller for ejecting said ticket, said rollers being driven by ashaft ofthe computing machine, pressure rollers for respective cooperation withsaid feeding and ejecting rollers, members carrying said pressurerollers, a leading cam on said shaft controlling one of said carryingmembers, atrailing cam on said shaft controlling the other carryingmember, spring means acting on said members to carry them and theirpressure rollers'into cooperation with their respective feeding anentire operation of said computing machine shaft.

3. A ticket printing and delivering attachment for computing machines,comprising means for supporting a ticket strip, a roller LYI forfeedingsaid strip, means for severing a ticket from the strip, a platen,a roller for ejecting said ticket, said rollers being driven by a shaftof the computing machine, pressure rollers for respective cooperationwith said feeding and ejecting rollers, members carrying said pressureroller ,a leading cam on'said shaft controlling one of said carryingmembers, a trailing cam on said shaft controlling the other carryingmember, spring means acting on said members to carry them and theirpressure rollers into cooperation with their respective feeding andejecting rollers and cams, means for shifting said platen, a cam on saidshaft intermediate said leading and trailing cams and operating saidplaten shifting means, controlling means for putting said platenshifting means into operative and inoperative condition,meansrestraining said spring actuated members agalnst motion towardstheir respective cams, means for putting said restraining means inreleased and engaged positions, means permitting the insertion. of awork-piece upon the platen, and means actuated by said inserted piece toprevent the re lease of said restraining means.

4:. A ticket printing and delivering attachment for computing machines,comprising means for supporting a ticket strip, a roller for feedingsaid ticket strip, means for severinga ticket from the strip, a platen,a roller for ejecting said ticket, said rollers being driven by a shaftof the computing machine,

pressure rollers for respective cooperation restraining said springactuated members againstmotion towards theirrespective cams,

controlling means for putting saidlplaten shiftingmeans into operativeand inoperav tive condition and said restraining part in released andengaged positions, an abrupt cam onsaid shaft, a part under the controlI of said abrupt cam to engage saidrestraining aart in released ositionthrough an entire operation of said computing machine shaft,

meanspermitting the insertion of a workpiece upon the platen. an armpivoted on said abrupt-cam controlled part, plunger carried by said armand reciprocating through said inserting means, and means connectingsaid arm with said restraining part to bring the lastanamed part intoengaged position when .thereciprocaiionof saidplunger during theoscillation of said abrupt-cam controlled arm is prevented by theinserted workpiece.

5. An attachment for a computing ma chine, comprising an actuatingshaft, printing members, a supporting member, a carrier 1 mounted onsaid supporting member, means for connecting said carrier with saidsupporting member and providing for its oscillation and release, a stripdelivering bobbin on said carrier, a receiving bobbin on said carrier, aplaten and a strip feeding roller on said carrier, means for actuatingsaid platen and feeding roller to feed the strip from said deliverybobbin to said receiving the oscillation of said carrier, an adjustablepart on said carrier, means actuated by said shaft to strike saidadjustable part and force said carrier and platen against said printingmembers, means for supporting and feeding a ticket strip and forsevering and deliveringa ticket therefrom, a platen for theticket, meansactuated by said shaft for operating the last named means and platen,and controlling means for putting the last named operatin means into andout of operative position.

6. An attachment for a computing machine comprising an actuating shaft,printing members, a supporting member, a carrier mounted on saidsupporting member, means for connecting said carrier with saidsupporting member and providing for its oscillation'and release, a stripdelivering bobbin and a strip receiving bobbin on said carrier, a platenand a strip feeding roller on said carrier, means for actuating saidplaten and feeding roller to feed the strip from said delivering bobbinto said receiving bobbin,

said ineans'being made operative by the oscillation of said carrier, anadjustable part on said carrier, said adjustable part controlling saidcarrier connecting means, means actuated by main shaft to strike saidadjustable part and force said carrier and platen against said printingmembers, means for supporting and feeding a ticket strip and forsevering and delivering a ticket therefrom, a platen for the ticket,means actuated by said shaft for operating the last named meansand'platen, and controlling meansfor putting the last named actuatingmeans into and out of operative position.

7. A ticket printing and delivering attachmeans for supporting a stripfrom which the tickets are-to be severed; printing members; meansactuated by a shaft of the computing machine for feeding and severingsaid strip and for pressing it against said printingmembers to obtain aprint therefrom; a guide for the strip between said printing members andthe meansfor pressing the strip against them; controlling means forselectively connecting the feeding and printing means with bobbin, saidmeans being made operative by s ment for computing machines, comprising1 the machine shaft; and means operable by the insertion of a workpiecefrom the outside into said guide for rendering the strip-feeding meansinoperative.

8. A ticket printing and delivering attachment for computing machinescomprising a carrier removable bodily from the machine, and mounted onsaid carrier the following instrumentalities, to wit: means forsupporting a strip from which the tickets are to be severed, printingmembers, means actuated by a shaft of the computing machine forfeeding,severing and carrying said strip in cooperative relation with saidprintin members, and controlling means for selectively connecting thefeeding and printing means with said machine shaft.

9. A ticket printing and delivering attachment for computing machines,comprising means for supporting and feeding a strip from which thetickets are to be severed; printing members; a platen for said strip;means actuated by a shaft of the computing machine for severing anddelivering a ticket from said strip, said platen cooperating with saidprinting members; an inking ribbon encircling said printing members;means for feeding said inking ribbon; means to operate said feedingmeans and ticket severing means and to move said platen against saidprinting members and inking ribbon; a guide for the strip between saidprinting members and platen; controlling means for selectively carryingsaid strip feeding and ticket print ing, severing and delivering meansin connected relation with said machine shaft; and means operable by theinsertion of a sheet from the outside into said guide for rendering thestrip feeding means inoperative.

10. A ticket printing and delivering attachment for computing machines,comprising means for supporting and feeding a ticket strip; means forsevering and delivering a ticket from said strip; set of printingmembers; a platen for said strip, said platen cooperating with said setof printing members; inking meansfor said printing mem bers; a guide forthe strip between said printing members and platen; means actuated by ashaft of the computing machine for erating said platen, certain parts insaid ,naftactuated means adapted to be carried out of "operativeposition; means for controlling said parts; means for controlling thesaid strip feeding means and ticket delivering means; and means operableby the insertion of a sheet inserted from the outside into said guidefor rendering the strip feeding me: inoperative. I

11. A ticket printing and delivering attachment for computing machines,comprising means for supporting and feeding a ticket strip; means forsevering and delivering a ticket from said strip; a set of printingmembers; a platen for said strip, said platen cooperating with said setof printing members; inking means for said printing members; anactuating arm operated by a shaft of the computing machine; a crank armpivoted on said actuating arm and adapted to shift said platen; a memberconcentric with said actuating arm and controlling said crank arm; andmeans controlling said memberand crank arm to carry them into and out ofoperative condition.

12. A ticket printing and delivering attachment for computing machines,comprising means for supporting a ticket strip; printing members; aroller for feeding said strip and driven by a shaft of the computingmachine; means for severing a ticket from the ticket strip; a platen forpressing said strip against said printing means and under actuation ofthe machine shaft; a roller driven by said shaft for ejecting theticket; :1- pressure roller for cooperation with said strip feedingroller; a pressure roller for cooperation with said ejecting roller toproduce the feed of the ticket strip to said ticket severing means andplaten and the ejection of a printed and severed ticket; means torestrain said pressure rollers from cooperation With said feeding andejecting rollers; controlling means for selectively carrying said stripfeeding means and platen into inoperative condition; means forselectively carrying said platen and said restraining means into and outof operative condition and into released and engaged positions,respectively; and means under the actuation of said shaft to hold saidrestraining means in released position through anentire operation ofsaid shaft after having been carried into released position.

\ 13. A ticket printing and delivering attachment for computingmachines, comprising means for supporting a ticket strip; printingmembers; a roller for feeding said strip and driven by a shaft of thecomputing machine;

means for severing a ticket fromthe ticket I strip; a platen forpressing said strip against said printing means and under actuation ofthe machine shaft; a guide for the strip between said printing membersand platen; a roller driven by said shaft for ejecting the ticket; apressure roller for cooperation with said strip feeding roller; apressure roller for cooperation with said ejecting roller to pro ducethe feed of the strip to said ticket severing means and platen and theejection of, a printed and severed ticket; means to re strain saidpressure rollers from cooperation with said feeding and ejectingrollers; controlling means for selectively carrying said strip feedingmeans and platen into inoperative condition; means for selectivelycarrying said platen and said restraining means into and out ofoperative condition and into released and engaged positions,respectively;

and means operable by the. insertion of a sheet from the outside intosaid guide to hold said restraining means in engaged position during theoperation of the platen.

' lt. A ticket printing and delivering attachment for computingmachines, comprising means for supporting a strip from which the ticketsare to be severed; printing members; separate means adapted to beactuated by a shaft ofthe computing machine for v feeding said strip andfor carrying it in co- .ope-rative relation with said printing memberscontrolling means operable by hand for carrying said feeding means andsaid printing means inoperative or in inoperative relation with themachine shaft; and another controlling means in said strip-feedingmeans, the. last-named controlling means adapted .to be actuated by theintroduction of 520 a workpiece into the machine for receiving a printfrom said printing members.

, 15. A ticket printing and delivering attachment for computingmachines, comprising means for supporting a strip from which the ticketsare to be severed printing members; separate means comprising levergears actuated by a shaft of the computing machine for feeding. saidstrip and for carrying it in cooperative relation with said printingmembers; means operable by hand for completing or interrupting theoperative succession of said lever gears; and another controlling meansfor connecting or disconnecting the lever gear actuating thestrip-feeding means, said last-named controlling means being adapted tobe actuated by the introduction of a workpiece into the machine forreceiving a print from said printing members.

16. A ticket printing and delivering attachment for computingmachines,comprising means for supporting a strip from which the ticketsare to be severed; printing members; separate means comprising twolevergears actuated by a shaft of the computing i machine for feeding saidstrip'and for carrying it in cooperative relation with said printingmembers; a key acting on both said lever gears to maintain them inconnectedrelation; and another controlling means for discon- 5,0 nectingthe lever gear actuating the stripfeeding means, said last-namedcontrolling means being adapted to be actuated by the introduction of aworkpiece into the machine for receiving a print from said printingmembers.

In testimony whereof I afiix my signature.

ATTILIO ERRERA.

